AS7-1534 Add JDBC based timer data store.

This is the initial implementation, and is lacking several important features, however
it does pass the TCK when run using the h2 database.

In particular, the following features are still to come:
- Testing against multiple databases.
- Add a flag to control table creation options
- Clustered timer support
- Setup the test suite to run all timer tests against both data stores
Begin work on transformers